Locomotive structure



Dec. 7, 1937. W. L. LENTZ ET AL 2,101,619

LocomoTI'vE STRUCTURE Filed sept. 26, 1935 5 Sheetsheet 1 LEI llll///////// lllll'lll Dec.; 7, 1937.

w. L. LENTz ET AL 2,101,619

LOCOMOTIVE STRUCTURE Filed Sept. 26, 1935 3 Sheets-Sheet 2 Dec. 7, 1937. W. LENTZ ET Al.

LocoMoTIvE STRUCTURE Filed Sept. 26,' 1935 3 Sheets-Sheet 3 Patented Dec. 7, 1937 PATENT OFFICE LocoMo'rIvE STRUCTURE William L. Lentz, Tuckahoe,v N. Y., and Carl F.

Kantola, Ashtabula, Ohio, assignors to The New York Central Railroad Company, a corporation of New York Application september 26, L1L9sa Yserial No. 42,344 13 claims.YV (c1.v 10s- 2) invention relates to smoke lifting means for locomotives, Vanciparticularly steam locomotives of streamline type.

In a prior'application for patent executed Au- 5 gust 23, 1935, Serial No. 42,342, filed September 26, 1935, there is discloseda streamline construction for locomotives including a cowling and hood about the body and forward portions of the boiler.

l:['his cowling is provided with an air scoop channel io or chute opening at its forward end through its front or throughthe top of the hood and extending rearwardly about and beyond a streamlined smoke stack and terminating at its rear end adjacent to the stack in a deflector orl scoop plate,

l5 the construction being such that inthe forward travel of thelocomotive air flowingn rearwardly through the air scoop channel or chute and striking the deector or scoop plateis deflected upwardly and rearwardly, whereby the smoke-and- 20 gases issuing from the stack are carried upwardly to a predetermined height vand causedV to travel rearwardly above the horizontal plane of the top ofthe locomotive cab, thuspreventing the smoke from the stackffrom striking the front of the cab g5 andcloudingthe Vision of the engineerv and also .preventing other well known nuisances occurring in the operation of a steam locomotive not so equipped. In such prior application is also shown the use of side scoops or chutes independent of 3u the cowl scoop or chute for projecting streams of air upwardly and rearwardly'into the free atmosphere to augment the smoke lifting action of the lifting streams produced by the cowl scoop.

These' side scoops or vchutes,`as shown in said prior application, are associated with and formed as parts of stairways or ladders leading to the front running board, the upper steps of the ladders being of perforate type and serving as gratings for the escape of the air streams. r- 10 The object of the presentA invention is to provide an improvedconstruction of the side scoops orchutesawherein the` air currents collected by said scoops, instead of being discharged at the sides of the locomotive into thejfree atmosphere, 45 are Ventrapped and conducted through'conned courses, `as through ducts, toand discharged with force directly into the cowl scoop so'as to strike the deflector or scoop plate and to be deflected upwardly thereby with the curr-ent of air from the cowl scoop, so as to augment the volume and increase the velocity of thesmoke lifting current of air as well as to further increase the efficiency of. theY exhaust and ensure the lifting ofthe a5 gewend-gases i0 the predeterminef 'high dissipation` level at any and all train haul speeds of the locomotive.

The invention consists of the features of construction, combination and arrangement of parts,

hereinafter fully described and claimed, refer- 5v ence being had to the accompanying drawings, inwhichzl Fig. 1 is a View in side elevation of a streamlined locomotive embodying the invention.

Fig. 2 is a front perspective view thereof. i l0` Fig. 3 is atop plan view, on an enlarged scale,

of the forward portion of the locomotive, with parts appearing in section, showing the smoke stack, cowl scoop and the auxiliary scoops cooperating therewith. 15

Figml is a side'elevation, partly in section, of

the parts appearing in Fig. 3.l Y Fig. 5 is a transverse section taken on line 5-5 of Fig.V 4.

, Referring now more particularly to the draw.- 20.

ings, I designates a steam locomotive having a boiler l2,V cab 3, siderrunning boards 4, and suit- .ablyjstreamlined smoke stack 5.and auxiliary steam exhaust 6. VEnclosing the boiler 2 longitudinally between the front of the cab and tip of the 25 pilot is a sheet steel streamline cover comprising a cowling 'I and a hood 8. 'I'he Cowlingl 'I extends transversely over the boiler in spaced relation thereto between the running boards and Ais supported by a suitable framework structure se- 3Q cured to the boiler shell and to the running boards. The hood 3 extends vertically at an up- Ward and rearward slope from the tip of the pilot Vto the forward endof the rebox portion of the boiler, where it is joined to the front of the cowling, and said hood is parabolically curved transversely to deflect head or angle wind currents toward the sides of the locomotive. The construetion of these parts and their operating characteristics may accord with the disclosure in these re 40 spects set forth in the aforesaid prior application.

The smoke stack Vand auxiliary steam exhaust are of streamline contour or provided with a suitable streamline fairing or jacket 9, and these elements are arranged in aV depressed portion at the 45,

of the hood, which opening may be covered by a grille or screen I4 connecting the side walls of the opening and preserving the contour of such portion of the hood. The Wall slopes at a proper angle to form a scoop plate or deector to deect currents of air upwardly and rearwardly. In the forward` travel of the locomotive air entering the chute through thel inlet opening I3 travels rearwardly therein on opposite sides of and beyond the smoke stack and auxiliary steam exhaust and strikes against the scoop I, whereby this air and the streams of air flowing along the sides of'V the smoke stack are shot upwardly and rearwardly to a level above the top of the locomotive cab, carrying with them the smoke and gases issuing from the smoke stack. The top of the forward portion of the channel or chute and the divisions of this channel onl opposite sides of the smoke stack may be left open, or may be closedb y a cover plate between the hood and a point coinciding with the transverse center ofthe smoke stack, if desired.

The present invention provides means for producing and projecting auxiliary currents or blasts of air. into the channel or chute to mingle with and augment the volume and increase the smoke lifting effect of the main blast or current of air on the smoke and gases issuing from the smoke stack. To this end the locomotive is provided at each side and at the front thereof with a stairway orladderstructure I5 leading upward to the forward end of the running board 4 at that side. Each ladder structure comprises outer and inner side rails or sheets I6 and I'I, steps I8 extending transversely therebetween, and a back wall I9 spaced from the rear edges of all the steps except the bottom and top steps and forming an enclosure which is open at front, closed at bottom and top by the bottom and top steps and at the rear by the wall I9. The ladder slopes in an upward and rearward direction and the wall I9 correspondingly slopes and forms an inclined wind scoop1 each ladder thus being constructed to serve the function of a wind chute. Air in the forward travel of the locomotive enters this chute through its open front and through the spaces between the steps and upon striking the defleetor plate or wall I9 shoots upwardly through the passage between said plate or wall and the intermediate steps.

At their upper ends thechute passages communicate through ports 20 formed in the sidesfof the cowling 'I with the lower ends of ducts 2| disposed between the cowling and adjacent sides of the boiler shell 2. These ducts extend upwardly and rearwardly at the sides of the boiler and over the top of the boiler beneath the cowling and communicateat their upper or delivery ends with opposite sides of the rear end of the channel or chute I2 through series of lateral ports or nozzle openings 22 formed in the side walls of said channel, said ports or nozzle openings being provided with louvres or deflector plates 23 for guiding the streams of air issuing therefrom with velocity from the ducts 2|. Air entering each duct from its associated ladder scoop thus discharges through the nozzles 22 in the form of blasts of high intensity which mingle with the current of air traversing the channel I2 and striking the scoop plate The air current supplied by the channel I2 is thereby augmented in volume and intensity by the auxiliary currents or air blasts from the ducts 2|, resulting in the production of a lifting stream of air of large volume and of a sufficient forcen to ascend to aconsiderable height, ensuring the lifting of the smoke and gases issuing from the smoke stack to the intended high dissipation level at all locomotive' train haul speeds and when the locomotive is traveling at comparatively slow speed. This lifting action of the air blasts also promotes the efficiency of the draft through the smoke stack, as will be readily understood. The rear ends of the ducts 2| may, as shown, be connected in rear of the scoop plate by a cross duct 24, and the top walls of the ducts 2| and 24 may be provided with vent` apertures or slots 25 to allow any air in excess of that which may freely pass through the nozzles 22 to escape to the free atmosphere, thus preventing any possible choking of the air within the ducts. By thus providing the ducts 2| to supply additional currents of air and conning the air until it discharges into the channel |2 the production of a smoke lifting current of large volume and high velocity is ensured to eiTect the lifting. of the smoke to the intended level not only at different locomotive speeds but under all contrary natural wind conditions to prevent the smoke nuisances to which the engineer in the cab and passengersy in the cars of the train are ordinarily subjected.

While the structural organization shown for the purpose set forth is preferred, it will, of course, be understood that the same is merely exemplicative, and that changes in the form, proportions and arrangement of the parts may be made within the scope of the appended claims without departing from the spirit or sacrificing any of the advantages of the invention.

What is claimed is:-

1. A locomotive having a cab, a smoke stack located forwardly of the cab, an air scoop adjacent said stack and at least partially surrounding the stack and having an inclined surface for directing the scooped air upwardly to lift the smoke issuing from the stack to a level above the level of the cab, air scoops at the front and on opposite sides of the locomotive and having inclined surfaces fory directing air upwardly and rearwardly, and air conductors leading from the second-named scoops to and communicating with the firstnamed scoop.y

2. A locomotive having a boiler, a. cab, a smoke stack located forwardly of the cab, a streamline cowling over the top and sides of the boiler, an air scoop adjacent the stack and at least partially surrounding the stack and partly enclosed by the cowling for producing a current of air and including av surface for directing the scooped air upwardly to lift the smoke issuing from the stack to a level above the level of the cab, air scoops at the sides of the locomotive, and air conductors leading from the second-named scoops beneath the cowling-to and communicating with the first-named scoop. l

3. A locomotive having a cab, a smoke stack located forwardly of the cab, an air scoop adja cent to and at least partially surrounding said stack and including an inclined surface to lift the smoke issuing from the stack to a level above the level of the cab, running boards at the sides of the locomotive, air scoops at the front of the locomotive leading to points adjacent the running boards, and air conductors leading from the second-named scoops to and communicating with the rst-named scoop.

4. Aglocomotive having a boiler, a cab, a smoke stack located, forwardly of the cab, a streamline cowling over the top and sides of theboiler, an air scoop adjacent the stack and at least partially the running boards, and air conductors leading from the second-named scoops beneath the cowling to and communicating with the first-named scoop.

5.1A locomotive having aboiler, a cab, asmoke Vstack located forwardly of the cab, a cowling over 5 the top of the boiler having a portion structurally formed adjacent the stack to provide an air scoop at least partially surrounding and including an inclined surface to'lift the smoke issuing from the stack to a level above the level of the cab, air scoops at the sides of the locomotive, and air conductors leading from the second-named scoops to and communicating with opposite sides of the first-named scoop at the rear thereof.

6. A locomotive having a boiler, a cab, a smoke stack located forwardly of the cab, a cowling over the top and sides of the boiler having a portion structurally formed adjacent the stack and at least partially surrounding the stack to provide an air scoop for producing a current of air and including a surface for directing the scooped air upwardly to lift the smoke issuing from the stack to a level above the level of the cab, air scoops at the front of the locomotive and on opposite sides thereof, and air conductors leading from the second-named scoops beneath the cowling to and communicating with the first-named scoop at opposite sides thereof.

7. A locomotive having a boiler, a cab, a smoke stack located forwardly of the cab, a cowling over the top of the boiler having a portion structurally formed adjacent the stack to `provide an air scoop at least partially surrounding thestack for producing a current of air and including a surface for directing the scooped air upwardly to lift the smoke issuing from the stack to a level above the stack for producing a current of air and including a surface for directing the scooped air upwardly to lift the smoke issuing from the stack to a level above the level of the cab, running boards at the sides of the locomotive, air scoops at the front of the'loco'motive in advance of andleadingupwardly to points above the level of the running boards,

- and air conductors leading from the secondnamed scoops beneath the cowling to and communicating with opposite sides of the first-named scoop at the rear thereof.

9. A locomotive having a boiler, a cab, a smoke stack located forwardly of the cab, a cowling over the top of the boiler provided with a depressed portion forming an air scoop channel at least partially surrounding said stack and provided with a deflector for deiiecting air from the channel upwardly to lift smoke issuing from the stack to a level above the level of the cab, air scoops at the sides of the locomotive, and conductors.

leading from said scoops to and communicating with said channel.

10. A locomotive having a boiler, a cab, a smoke stack located forwardly of the cab, a cowling over the top and sides of the boiler provided with a depressed portion forming an air scoop channel at least partially surrounding the stack and provided With a deiiector for deflecting air from the channel upwardly to lift smoke issuing `from the Vstack to a level above the level of the cab, airV scoops at the sides of the locomotive, and conductors leading from said scoops beneath the cowling to and communicating with said channel.

l1. A locomotive having a boiler, a. cab, a smoke stack located forwardly of the cab, an air scoop located adjacent to and at least partially surrounding said stack for producing a current of air to lift the smoke issuing from the stack to a level above the level of the cab, running boards at the sides of the locomotive, air guidingsurfaces at the sides of the locomotive leading from the forward portionof the lomotive at an upward and rearward angle of inclination to the level of tors leading from the side air scoops to the rst- Y named scoop.

12. A locomotive having a boiler, a cab, a smoke stack located forwardly of the cab, a cowling overV the top .and sides of the boiler provided with a depressed portion forming an air scoop channel at least partially surrounding the stack and provided with a deilector for Vdeflecting air from the channel upwardly Vto lift smoke issuing from the stack toa level above the level of the cab, running boards at the sides of the locomotive, air scoops at the sides of the locomotive leading upwardly to the running boards and including lspaced ladder tread steps subdividing the entrances of the scoops, and conductors leading from said scoops beneath the cowling and communicating with said channel.

)13. A locomotive having a boiler, a cab, a smoke stack located forwardly of the cab, a cowling over the top and sides of the boiler provided with a depressed portion forming an air scoop channel at least partially surrounding the stack terminating in rear thereof in a deiiector for deecting air from the channel upwardly to lift smoke issuing from the stack to a level above the level of the cab, running boards along the sides of the locomotive, air scoops at the sides of the locomotive below and in advance of and leading upwardly toward the running boards, spaced ladder tread steps subdividing the entrances of said scoops, and conductors leading from said scoops beneath the cowling at opposite sides of the locomotive and communicating with the side of the scoop adjacent to said deector.

' CARL F. KANTOLA. WILLIAM L. LENTZ, 

